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(No Model.) 2 Sheets-Sheet l.

W. ARNEMAN N. PITOHING MAGHINE.

No. 440.297. Patented Now-11, 1890.

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(No Model.) 2 Sheets-Sheet 2.

W. ARNEMANN.- PITGHING MAOHINB.

No. 440,297. Patented Nov. 11, 1890.

NITED STATES PATENT OFFICE.

lVlLHELH ARNEMANN, OF HAMBURG, GERMANY.

PlTCHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 440,297, dated November11, 1890.

Application filed August 23, 1890. Serial No. 362,839. (No model.)

To all whom it may concern:

Be it known that I, VVILHELM ARNEMANN, of the city of Hamburg, in theEmpire of Germany, have invented a new and useful Inlprovement inPitching-ll/lachines, of which the following is a specification.

The object of this invention is to provide for carrying olf from apitching-machine the vapor or smoke produced during the process ofpitching.

The improvement consists in the combination, as hereinafter describedand claimed, of a smoke-extractor with a pitching-machine, whereby boththe pitching-machine and the extractor constitute one transportableapparatus.

Figure 1 in the accompanying drawings represents a front elevation,partly in section, of a pitching-machine with my improvement. Fig. 2 isa plan view of the same partly in section. Fig. 3 is a side elevation ofthe same, partly in section.

Similar letters of reference designate corresponding parts in all thefigures.

The furnace A of the machine is of known construction, having within ita fire-place for a fire of coke, into which fresh air is to beintroduced from a blower through a tube 01, to be heated therein and ledtherefrom through tubes 0 to the nozzles 3, upon which the barrels to bepitched are placed.

The smoke and vapor extractor consists, principally, of a box or hood B,partly surrounding; the upper part of the furnace and having provided inits bottom tubes h, each of which has for each tube 0 and nozzle 5 twobranches h and 7L2, that are arranged in such manner shown that afterthe barrel to be pitched has been placed on or over the correspondingnozzle 0 the tube 7Z2 terminates underneath the bung-hole of the barreland the corresponding tube 72/ terminates near the tap-hole. A tube atleads from the box or hood B to an exhauster, which may be of any knownor suitable kind not necessary to be shown.

While operatingthe machine hot air from the furnace enters the barrelsthrough the tubes 0 and nozzles s and melts the old pitch attached tothe inner surface of the barrels. This pitch runs out of the bung-holenear the sides of the nozzle into a reservoir 6. At the same time theexhauster removes the smoke from the barrel through the tubes 7?. and 71into the box or hood B, and thence through the tube d into theatmosphere, or to a place Where it cannot molest the workmen or otherpeople. The suction-tubes h and h can be closed each by a slide or flapto close one or more of the same toward the box or hood B if thecorrespol'lding tubes 0 and nozzles s have to be shut out from work. Theends of the tubes h are made telescopic to provide for a close fit tothe barrelsurface.

hat I claim as my invention, and desire to secure by Letters Patent, is

The combination, with the furnace A, the hot-air pipe 0, and nozzle 8 ofa pitchingmachine, of a box or hood B, arranged near the said furnaceand provided with an exhaust-pipe (Z and with tubes h 71 for formingcommunication,respectively, with the taphole and bung-holes of a barrelplaced over the said nozzle, substantially as and for the purpose hereinset forth.

WILHELM ARNEMANN. Witnesses:

F. ENGEL, H. WITT.

